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Extract from the Register of European Patents

EP About this file: EP0256299

EP0256299 - Ammonia synthesis converter [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  25.06.1992
Database last updated on 16.11.2024
Most recent event   Tooltip25.06.1992No opposition filed within time limitpublished on 12.08.1992 [1992/33]
Applicant(s)For all designated states
The M. W. Kellogg Company
601 Jefferson Avenue Houston
Texas 77210-4557 / US
[N/P]
Former [1991/26]For all designated states
THE M. W. KELLOGG COMPANY
601 Jefferson Avenue
Houston, Texas 77210-4557 / US
Former [1988/08]For all designated states
The M. W. Kellogg Company
Three Greenway Plaza East
Houston Texas 77046-0395 / US
Inventor(s)01 / Noe, Stephen A.
2800 Jeanetta, No. 1408
Houston Texas 77063 / US
[1988/08]
Representative(s)Weickmann, Heinrich, et al
Weickmann & Weickmann Patentanwälte Postfach 86 08 20
81635 München / DE
[N/P]
Former [1988/08]Weickmann, Heinrich, Dipl.-Ing., et al
Patentanwälte H. Weickmann, Dr. K. Fincke F.A. Weickmann, B. Huber Dr. H. Liska, Dr. J. Prechtel, Dr. B. Böhm Postfach 86 08 20
D-81635 München / DE
Application number, filing date87110002.010.07.1987
[1988/08]
Priority number, dateUS1986088562015.07.1986         Original published format: US 885620
[1988/08]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0256299
Date:24.02.1988
Language:EN
[1988/08]
Type: A3 Search report 
No.:EP0256299
Date:28.09.1988
Language:EN
[1988/39]
Type: B1 Patent specification 
No.:EP0256299
Date:21.08.1991
Language:EN
[1991/34]
Search report(s)(Supplementary) European search report - dispatched on:EP08.08.1988
ClassificationIPC:B01J8/04, C01C1/04
[1988/08]
CPC:
C01C1/0423 (EP,US); C01C1/04 (KR); B01J8/04 (KR);
B01J8/0484 (EP,US); B01J2208/00203 (EP,US); B01J2219/182 (EP,US);
Y02P20/52 (EP,US) (-)
Designated contracting statesAT,   BE,   DE,   ES,   FR,   GB,   GR,   IT,   NL [1988/08]
TitleGerman:Ammoniaksynthesekonverter[1988/08]
English:Ammonia synthesis converter[1988/08]
French:Convertisseur de synthèse d'ammoniac[1988/08]
Examination procedure05.07.1988Examination requested  [1988/36]
02.08.1989Despatch of a communication from the examining division (Time limit: M04)
04.12.1989Reply to a communication from the examining division
13.03.1990Despatch of a communication from the examining division (Time limit: M04)
29.06.1990Reply to a communication from the examining division
12.10.1990Despatch of communication of intention to grant (Approval: Yes)
04.02.1991Communication of intention to grant the patent
30.04.1991Fee for grant paid
30.04.1991Fee for publishing/printing paid
Opposition(s)22.05.1992No opposition filed within time limit [1992/33]
Fees paidRenewal fee
16.06.1989Renewal fee patent year 03
20.06.1990Renewal fee patent year 04
02.01.1991Renewal fee patent year 05
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Documents cited:Search[A]US3440021  (NIEDETZKY JOHANN, et al);
 [A]FR1577646  ;
 [A]US4452760  (PETERSON ROBERT B [US], et al)
 [A]  - CHEMICAL ENGINEERING PROGRESS, vol. 79, no. 5, May 1983, pages 56-61, New York, US; S.E. HANDMAN et al.: "The horizontal ammonia converter"
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.